FROM THE FALKLAND ISLANDS. 159 
Rostrupp has provided fairly lengthy lists (03 and 03 а). Leege’s papers on 
the flora of the East Frisian Islands, and Rea and Hawley’s report (12) for 
the Clare Island Survey are also of interest in this connection, the last- 
mentioned giving a list of important genera found on the mainland, but 
absent on Clare Island only three miles distant. As in the Falklands, the 
explanation is doubtless chiefly to be found in the severe exposure and the 
absence of trees. 
II. SYSTEMATIC LIST OF MARINE ALGAE. 
CYANOPHYCEJE. 
DERMOCARPA PRASINA, Thur. et Born. Notes Algol. п. pp. 75-77, tab. 26. 
E. Falklands; Berkeley Sound, Hooker; Port Stanley, Hohenacker. 
W. Falklands ; Roy Cove, Vallentin. 
DISTRIB. Cosmopolitan. 
HYELLA CAESPITOSA, Born. et Flah. in Journ. de Dot. ii. (1888) p. 162. 
W. Falklands; in Spirorbis, Roy Cove, Vallentin. 
Distris. Probably cosmopolitan. 
One of the shell-boring alge, and not previously known from the 
Falklands. 
OSCILLARIA NIGRO-VIRIDIS, (rom. Oscill. p. 237, tab. 6. fig. 20. 
E. Falklands ; Port Louis, Skottsberg. 
DisrriB. Probably cosmopolitan. 
CALOTHRIX ÆRUGINOSA, Thur. Mss. p. 382 ; Born. et Thur. Notes Algol. 
ii. p. 157, pl. 37. 
E. Falklands, Bérard (teste Bornet), Hooker (teste Hariot). 
DisrRiB. Probably cosmopolitan. 
CHLOROPHYCE A. 
CHLOROCHYTRIUM INCLUSUM, Ajellm. Alge Arctic Sea, р. 320. 
W. Falklands : in Zridwa cordata, Rapid Point, Vallentin. 
DisrriB. N. Atlantic, N. Pacific, Fuegia. 
With the exception of Hariot’s record from Fuegia, this alga has not 
apparently been detected from elsewhere in the southern hemisphere. 
MONOSTROMA ENDIVLEFOLIA, А. $ E. ©. Gepp, in Journ, Bot. xliii. (1905) 
р. 105, tab. 470. figs. 1—5 ; * Scotia’ Report, iii. p. 73, pl. 1. figs. 1-5. 
E. Falklands; Port William, Hooker. W. Falklands; West Point Island, 
Hennis ; Roy Cove, in pools at half-tide, Vallentin. 
